This Equation Has One Solution., 5(X 2013 1) + 3x = 7(X + 1), What Is The Solution?

This equation has one solution.
5(x – 1) + 3x = 7(x + 1)
What is the solution?

Answer:

12

Step-by-step explanation:

step 1: Distribute all under with the parenthesis

5(x – 1) + 3x = 7(x + 1)

⇒ 5x -5 +3x = 7x +7

step 2: move all the variables (those with x) to the left side and all constants to the right side

remember: the sign will change when moving to another side (+ to - or - to +)

5x + 3x - 7x = 7 + 5

step 3: simplify (combine like terms)

x = 12


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